Hillside (IL) Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Hillside’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in the United States of America.
Monthly Temperature Averages
In Hillside, temperatures can shift dramatically between warm in summer and very cold in winter. Average maximum daytime temperatures reach a comfortable 29°C in July. In January, the coolest month of the year, temperatures drop to a very cold -0°C. At night, minimum temperatures can drop even lower, averaging around -8°C.
The chart below illustrates the average maximum day and minimum night temperatures in Hillside by month:
The early hours of 4 AM to 6 AM often see the lowest temperatures, while 3 PM marks the peak of the day’s heat as the sun’s impact is strongest. July, the city’s warmest month, boasts 319 hours of sunshine.
The chart below shows the average temperature throughout the year:
January, the city’s coldest month, receives about 51 mm of rainfall spread over roughly 11 days. For more information, please visit our Hillside Precipitation page.
Annual Temperatures in the United States of America Compared
The map below shows the annual temperature across the United States of America. You can also select the different months in case you are interested in a specific month.
very warm
warm
pleasant
moderate
cold
very cold
Hillside Temperatures Compared World Wide
Hillside’s average annual maximum temperature is 15°C. Let’s compare this with some popular tourist destinations:
In Barcelona, Spain, the average annual temperature is around 21°C, resulting in warm summers and mild winters throughout the year.
In Toronto, Canada, the average annual temperature is 13°C, with snowy winters and warm summers.
Boston, USA, experiences seasonal shifts similar to New York, with an average annual temperature of 16°C.
Perth, Australia, experiences a Mediterranean climate, with a pleasant average temperature of 25°C.
How does the temperature feel?
Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.
On the other hand, in cooler months, especially when temperatures dip below 10°C, high humidity can intensify the cold. This makes the air feel much colder than it really is.
In Hillside, during the coolest month, January, you will experience 72% humidity, which is considered high. This is accompanied by an average maximum temperature of -0°C. In the warmest month, July, the humidity is 68% combined with an average maximum temperature of 29°C, which creates a high-feel temperature. Explore our detailed page on humidity levels for further details.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Sea vs. Land Temperatures
The influence of nearby oceans or large water bodies significantly affects local temperatures:
- Ocean Influence: Coastal regions tend to have more stable temperatures, as large bodies of water absorb and release heat slowly. This often results in milder winters and cooler summers compared to inland areas.
- Continental Climates: Landmasses well away from large bodies of water tend to show greater extremes in temperature, having hotter summers and colder winters because of the absence of water as a moderating influence.
For more detailed information about Hillside’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Hillside climate page.
Current temperature in Hillside (IL)
4 m/s
overcast and small chance of slight rain
5 m/s
overcast and heavy rain
6 m/s
partly cloudy and no rain
